12 papers
Demonstration of a Single-Laser-Diode-Pumped Ti:Sapphire Astrocomb on the Southern African Large Telescope
Ewan Allan, Yuk Shan Cheng, Kamalesh Dadi +13
Astrocombs -- broadband lasers comprising thousands of narrow, uniformly spaced and atomically-referenced spectral lines -- offer gold-standard wavelength calibration for ground-ba…
Toward nanophotonic platforms for solid-state Th nuclear clocks
Sandro Kraemer, Karen Mamian, Toby Bi +18
While the Th nuclear isomer has recently been observed and laser-excited, converting optical nuclear manipulation into a chip-scale solid-state frequency standard remains a…
Fourth-harmonic UV light generation in integrated silicon nitride microresonators
Alekhya Ghosh, Arghadeep Pal, Haochen Yan +6
Integrated silicon nitride (Si3N4) resonators have emerged as a leading platform for nonlinear photonics, yet generating light at wavelength in the ultraviolet (UV) has remained el…
Visible octave frequency combs in silicon nitride nanophotonic waveguides driven by Ti:sapphire lasers
Abdullah Alabbadi, Ewan Allan, Hanna Ostapenko +3
Nonlinear nanophotonic waveguides have opened a route to compact frequency combs for precision metrology, spectroscopy and astronomy, yet broadband comb access to the visible remai…
Color symmetry breaking in a nonlinear optical microcavity
Luca O. Trinchão, Alekhya Ghosh, Arghadeep Pal +8
Spontaneous symmetry breaking leads to diverse phenomena across the natural sciences, from the Higgs mechanism in particle physics to superconductors and collective animal behavior…
Inverse-Designed Silicon Nitride Nanophotonics
Toby Bi, Shuangyou Zhang, Egemen Bostan +12
Silicon nitride photonics has enabled integration of a variety of components for applications in linear and nonlinear optics, including telecommunications, optical clocks, astrocom…